What is the production process of industrial aluminum profiles?

by:Zeyi     2021-08-30
profiles refer to all aluminum profiles except for architectural doors and windows, curtain walls, indoor and outdoor decoration and aluminum profiles for building structures. profile is an alloy material with aluminum as the main component. Aluminum rods are melted and extruded to obtain aluminum materials with different cross-sectional shapes. When assembled into products, profiles of different specifications are used according to different load-bearing materials, and matching materials are used. Aluminum profile accessories, no welding, more environmentally friendly, and installation, disassembly, lightweight, easy to carry, and extremely convenient to move. What is the production process of industrial aluminum profile profiles?  1. Casting is the first process of aluminum production. The main process is:    (1) Ingredients: According to the specific alloy grades to be produced, calculate the addition amount of various alloy components, and reasonably match various raw materials.   (2) Smelting: The prepared raw materials are added to the smelting furnace to melt according to the process requirements, and the slag and gas in the melt are effectively removed by degassing and slagging refining methods.   (3) Casting: The molten aluminum is cooled and casted into round casting rods of various specifications under certain casting process conditions through a deep well casting system.  2. Extrusion: Extrusion is a means of profile forming. First, design and manufacture a mold according to the section of the profile product, and use an industrial aluminum profile extruder to extrude the heated round cast rod from the mold. The commonly used grade of 6063 alloy also uses an air-cooling quenching process and subsequent artificial aging process during extrusion to complete the heat treatment strengthening. Different grades of heat-treatable and strengthened alloys have different heat treatment systems. 3. Coloring (the oxidation process is mainly discussed here)    oxidation: The extruded aluminum alloy profile has a weak surface corrosion resistance, and it must be surface treated by anodizing to increase the corrosion resistance and wear resistance of the aluminum material. Sexuality and aesthetics of appearance.  The main process is:   (1) Surface pretreatment: Use chemical or physical methods to clean the surface of the profile, exposing the pure matrix, in order to obtain a complete and dense artificial oxide film. It is also possible to obtain a mirror or matte (matt) surface by mechanical means.   (2) Anodizing: The surface pretreatment of the profile, under certain process conditions, the surface of the substrate will be anodized to form a dense, porous, and strong adsorption AL203 film.   (3) Hole sealing: sealing the pores of the porous oxide film formed after anodization to enhance the anti-pollution, corrosion resistance and wear resistance of the oxide film. The oxide film is colorless and transparent. Using the strong adsorption of the oxide film before sealing, some metal salts can be adsorbed and deposited in the film pores, which can make the appearance of the profile show many colors other than the natural color (silver white), such as: black, bronze, Golden yellow and stainless steel color, etc.
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